All of the above are great to use. I tried the TLC and like it to point. I then found tuftruck HD coils. http://www.tuftruck.com/products/dodge/. I then put the TTC-1223 on my truck and have never looked back. The thing I like about these the best is that there is no air tank or lines that you have to run. No messing with psi to get the right ride. There are a couple OP on here that are running them as well and will tell you they love them. I personally think that these are what the ram should have come with from the factory.